carpenter



GRAIN DRILL.

Patented June 5, 1894.

avwemlfoz akin-0140,11

THE NATIONAL umuemxmma ooulPAuv.

WASHINGTON. n. c

(No Model.) 2 Sheets-Sheet 2;

. A. CARPENTER.

- GRAIN DRILL.

N0. atented June; 5, 189.4.

., IllTiixi I "HIM 1 c Wuumma aw vewlfoz Giro-014m THE NATIONAL umoqnuums coMPAM.

WASHINGTON. a. c.

UNITED STATES PATENT OFFICE.

ADELBERT CARPENTER, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR TO THE MONITOR MANUFACTURING COMPANY, OF SAME PLACE.

GRAIN-DRILL.

SPECIFICATION forming part of Letters Patent No. 520,843, dated June 5, 1894. Application filed March 8,1894. SerialNo- 502,198. (No model.)

To alt whom it may concern:

Be it known that I, ADELBERT CARPENTER,

residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in- Grain-Drills; and I do hereby declare the followlng to be a full, clear, and exact descriptlon of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to animprovement in grain drills,'and more particularly to press-' tion and combinations and arrangements ofparts ashereinafter set forth and pointed out in the claims.

In the accompanying drawings: Figure l is an elevation of a grain drill illustrating my improvements applied thereto. Figs. 2, 3 and l are enlarged detail views of the pressure devices: 0 A represents the frame of a grain drill having an axle amounted thereon for the accommodation of the carrying wheels ct, said axle preferably bracket a which supports the hopper a The drill shoes or hoes B (each being preferably provided with a boot B for the reception of the feed tubes from the hopper), are located in the usual position below the hopper and are connected with the forward end of the frame by means of suitable pull bars 17. At the rear end of the frame A, a shaft C is mounted and provided with rearwardly projecting arms C, which latter are connected with the pressure devices hereinafter fully described. The shaft C is also provided with a toothed segment 0 adapted to mesh with and receive motion from a toothed segment a carried by a short shaft c mounted above the shaft 0. The shaft 0 also has a lever D secured thereto, said lever being provided with a handle at and a latch bar (1 adapted to engage a segment 01 made rigid with the bracket passing through a portion of the.

bracket H, and also passing which supports the hopper and said latch bar is operated by means of a finger bar d connected with the latch bar by spring actuated rods 01 By operating the lever D motion will be transmitted to the shaft C through the medium of the gearing'above described and said shaft C being turned, the arm C will be raised or lowered, thus serving to raise or lower the shoe or hoe and the press wheel in a manner which will be hereinafter made apparent. Each press wheel E will be mounted in bars e, the forward ends of which will embrace the boots B and are pivotally connected I to a lug fprojecting forwardly from each boot. The lug f of each boot will preferablybe made with a series of perforations f, whereby to lighten the casting. 'At the rear end of the bars e,a scraper f is attached and adapted to remove earth adhering to the press wheel. Below the bars elugs 9 project laterally from the boot B. Arod F is connected at its lower end to a lug h projecting rearwardlyfrom the boot B, one of said rods being thus attached to each boot. The upper end of the rod F passes loosely through a collar 2' having trunnions 11, mounted in the bifurcated free end of the arm C. A spring G encircles the rod F, one end of said spring bearing on a disk or washer j located on the lugs h and the other end bearing on the collar 01 at the upper end of said rod F. By means of this spring the proper pressure is maintained on the shoe or hoe. A bracket H is made tubular at its upper end, as at k, and the downwardly projecting arms it of said bracket are provided at their lower extremities with laterally projecting lugs or pins l adapted to enter perforations in the bars 6 which carry the press wheel. The bars e will each be provided with a series of perforations 4% so that the attachment of the racket I-I thereto can be adjusted as desired. The rod F and spring G are adapted to pass loosely through the tubular portion of the loosely through said tubular portion of the bracket is a tubular casting -I, preferably slotted to secure lightness. The upper end of the I tubular portion of the bracket is recessed to produce a seat a for the lower end of a spring J which encircles said tubular casting, the upper end of said spring being adapted to bear against a flange 0 at the upper end of the tubular casting I,-said spring thus supplying the necessary pressure on the press wheel. It is of course to be understood that the pressure devices above described are provided for each shoe or hoe and press wheel. If desired the tubular casting I may be dispensed with and the springs G and J located one within the other. hen it is desired to raise the shoes or hoes and press wheels, the lever D will be operated to raise the free ends of the arms 0', whereupon the rods F will be raised, thus raising the shoes or hoes, and the lugs g, beneath the arms e will engage said arms and thus the press wheels will be raised simultaneously with the shoes or hoes and by the operation of the same lever.

From the construction and arrangement of parts above described it will be seen that the necessary pressure will be applied to the shoes or hoes and the press wheels and that the pressure applied to the shoes orhoes will be entirely independent of the pressure applied to the press wheels, so that the yielding action of one does not depend in any manner upon the yielding action of the other. By arranging the castings Hand I telescopically, the pressure devices are made compact in form.

My improvements are very simple in construction, comparatively cheap to manufacture, easy of application and effectual, in every respect, in the performance of their functions.

Various slight changes might be made in the details of construction of my invention without departing from the spirit thereof or limiting its scope and hence I do not wish to limit myself to the precise details of. construction herein set forth but,

I-Iaving fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination with the shoe or hoe and the press or covering wheel of a grain drill, of a spring adapted to apply pressure on said shoe or hoe, and a spring adapted to independently apply pressure to said press or covering wheel, said spring being arranged one within the other,su bstantially as set forth.

2. In a grain drill, the combination with a rearwardly projecting arm, a shoe or hoe, bars or brackets connected to said shoe or hoe and a press wheel carried by said bars or brackets, of a rod connected at one end with the shoe or hoe and at the other end with said rearward] y extending arm, a springencirclin g said rod, and hearing at its respective ends against the connection of said rod to the rearwardly extending arm and the shoe or hoe, and. a spring encircling said first mentioned spring and adapted to exert pressure on the press wheel, substantially as set forth.

3. In a grain drill, the combination with a rearwardly extending arm, a shoe or hoe, bars or brackets connected to the shoe or hoe and a press wheel mounted in said arms or brackets, of a collar mounted in the free end of said rearwardly extending arm,a rod passing loosely through said collar at one end and at its other end connected with said shoe or hoe, a spring encircling said rod and bearing atits respective ends against said collar and the connection of said rod with the shoe or hoe, and a spring encircling the first-mentioned spring and exerting pressure on said bars or brackets in which the press wheel is mounted, substantially as set forth.

4. In a grain drill, the combination with a shoe or hoe, bars connected thereto, a press wheel mounted in said bars, and a rearward] y extending arm, of a rod connected at its ends to said arm and the shoe or hoe, a spring en circling said rod and bearingat its respective ends on the connection of said rod to the rearwardly extending arm and the shoe or hoe, a bracket through which said spring loosely passes, said bracket being pivotall y connected to the bars in which the press wheel is monnted, a tubular casting encircling said spring and adapted to pass loosely through the upper end of said bracket and provided at its upper end with a flange or shoulder, and a spring encircling said tubular casting and hearing at its respective ends on the bracket and said flange or shoulder, substantially as set forth.

5. In a grain drill, the combination with a rearwardly extending arm, a shoe or hoe, bars connected to said shoe or hoe and a press wheel mounted in said bars, of a rod connected with said shoe or hoe and said rear wardly extending arm, a spring encircling said rod and adapted to exert pressure on said shoe or hoe, a bracket through which said spring loosely passes, means for adj ustably connecting said bracket to said bars in which the press wheel is mounted and a spring bearing on said bracket, substantially as set forth.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

ADELBER'I CARPENTER.

Witnesses:

(J. L. BUTTERFIELI), N. F. PHILLIPS. 

